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Proceedings Paper

Fiber Optic Gyroscope Using An Eight-Component LiNbO3 Integrated Optic Circuit
Author(s): W. J. Minford; F. T. Stone; B. R. Youmans; R. K. Bartman
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Paper Abstract

A LiNbO3 integrated optic circuit (IOC) containing eight optical functions has been successfully incorporated into an interferometric fiber optic gyroscope. The IOC has the minimum configuration' optical functions (a phase modulator, a polarizer, and two beam splitters) and Jet Propulsion Laboratory's novel beat detection circuit2 (a phase modulator, two optical taps, and a beam splitter) which provides a means of directly reading angular position and rotation rate. The optical subsystem consisting of the fiber pigtailed IOC and a sensing coil of 945 meters of AT&T polarization maintaining fiber has a loss of 18.7dB, which includes 9dB due to the architecture and unpolarized source. A random walk coefficient of 7.7 x 10-4 deg/NI-Fir was measured using an edge-emitting LED as the source.

Paper Details

Date Published: 13 February 1990
PDF: 6 pages
Proc. SPIE 1169, Fiber Optic and Laser Sensors VII, (13 February 1990); doi: 10.1117/12.963047
Show Author Affiliations
W. J. Minford, AT&T Bell Laboratories (United States)
F. T. Stone, AT&T Bell Laboratories (United States)
B. R. Youmans, California Institute of Technology (United States)
R. K. Bartman, California Institute of Technology (United States)


Published in SPIE Proceedings Vol. 1169:
Fiber Optic and Laser Sensors VII
Ramon P. DePaula; Eric Udd, Editor(s)

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